Shoe machine



Sept. 28, 1943. c; e. BROSTROM SHOE MACHINE 2 Shets-Sheet 1 Filed Sept.50, 1942 Sept 28,. 194 c. G. BROSTROM SHOE MACHINE V 2 Sheets-Sheet 2Filed Sept. 30 1942 Patented Sept. 28, 1943 waste snort MACHINE GharlesG. Brostrom, Lyn-n, 'Mass assignor to United Shoe Machinery Corporation,Flemington, ,L, a corporation o f-New Jersey Application September 30,1942, serial No. 460.2 12

8 Claims.

This invention relates to shoe machines, and is herein illustrated asapplied to a lasting machine constructed generally as disclosed inUnited States Letters Patent- No. 2,238,244, granted on April 15, 1941,on an application of mine. It is to be understood, however, that theinvention is not limited to the embodiment herein shown.

The machine shown in the above-mentioned Letters Patent, which isparticularly intended for use in lasting with cement the opposite sidesof the ball portions of shoes, is provided with a rotary lasting deviceof generally circular form which rotates completely about its axis ineach lasting operation, the device including a gripper for gripping andapplying a pull to the upper and means for wiping the margin of theupper inwardly over the insole. Includedalso in this lasting device is ashoe-controlling member arranged to engage the insole near the edge ofthe latter and to move the last heightwise relatively to the ripper tocause. the gripper to pull the upper, thi member thereafter being movedinwardly over the insole in frictional contact therewith by the rotationof'the device. It has been found that under some conditions lastingcement, especially latex, adhering to the insoleengaging face of thismember may cause the latter to distort or displace a portion of theinsole in moving inwardly over it. In operating, for example, 011 a shoeof that type in which the central portion of the forepart of the insoleis removed and the opening covered by a thin patch, the member in itsinward movement over the insole may displace the patch and may distortalso the marginal portion of the insole.

To guard against suchobjectionable results the present inventionprovides means for applying moisture to the insole-engaging face of theabove-mentioned member. It has been found that moisture, especiallywater, so applied counteracts in a sufliciently effective manner suchtendency as there may be for the insole to adhereto the member. For thepurpose in view the construction herein shown comprises a,moistureapplying pad, cam-controlled means for moving the pad intocontact with the insole-engaging face of the member at. a predeterminedtime in the rotation of the lasting device, and means for sup lyingmoisture to the pad from a water containing receptacle.

The invention will now be more particularly described with reference tothe accompanying drawings and thereafter pointed outin the claims.

In the drawings,

Fig. 1 isa iew, inright-hand side elevation of the upper portion of amachineconstructed as shown in the above-mentionedLetters Patent withthe present invention applied thereto;

Figs. 2, 3, 4 and 5 are fragmentary views, partly in right-hand sideelevation and partly in section, showing portions of the lasting devicein diiierent position which they assume in the courseof the lastingoperation;

Fig. 6 is a view similar to the. upper portion of Fig. 1, but showingthe parts in difierent positions than in Fig. 1; and

Fig. '71 is a perspectiize View of a shoe after it has been operatedupon by the machine.

In view of the disclosure in the abmzeementioned: Letters Patent, onlysuch parts of themechine as it is necessary to meter to for anunderstanding of the invention .be herein briefly described. The machineis: provided. with a rota-ry lasting device 2 including a segmentalmemher 4 fast on a rota able shaft 6.. The member 4 h s a pe ipheral rim8 concentric with the shaft 6 n x ending considerably m re than. halfway around the shaft. Between the, two ends of the rim is a recess, inwhich i located, as part of the rotary lasting device, a gripper H] forg pp n t e margin of the ball portion-of the upper at one side of a shoesupported at its other side on a shoe rest l2 andvimder control of theoperator. The gripper comprises a law; I 4 and three jaws 1,6 opposed tothe jaw M, as more, fully disclosed in the above-mentioned LettersPatent, only two of the jaws N3 being visible in the drawings. The jawI4 is moved by the operator into position to grip the margin of; theupper against the jaws It, as illustrated in Fig. 2, by downwardmovement of a member i8. At this time the insole a of the shoe isengaged near its marginal edge by a plate 20 supported by one of thejaws I6. After the gripping .of the margin of the upper the starting ofthe power operation of the machine takes place, whereupon the. plate 20is moved forward automatically, as illustrated in Fig. 3, and. therebymoves the lastand shoe heightwise relatively to the g ipper to cau e thgripper to pull the upper.. As the upper is thus pulled, the gripper IQremains stationary; butthe segmental member 4 begins its rotary movementand carries a wiper 22 on th rim 8 to a position substantiallycontiguous'to the margin ofthe upper, as alsoillustrated in Fig. 3. Thegripper ID is then forced, by the action of the rim 8 on the jaw M, torotate with the segmental member 4. A the gripper thus'startsato rotateit exerts an inward pull on the margin ofrthe upper, followedimmediately by. return movement of the plate- 20 the pad 28 (Fig. 6)

and release of the upper-by the gripper, as illustrated in Fig. 4.Further rotation of the lasting device 2 as a whole causes the wiper 22,acting as an overlaying member, to wipe the margin of the upper inwardlyover the insole into position to be secured thereto by cement previouslyapplied to the shoe, the rim 8 thereafter exerting a still more forciblewiping action on theupper through corrugations 24 on its periphery (Fig.For a better understanding of the construction thus far described thepreviously mentioned Letters Patent may be consulted.

It will be evident that as the gripper ID moves inwardly over the insolein the course of the rotation of the lasting device the plate moves withit in frictional contact with the bottom face of the insole. The shoeherein shown is one of a type having an insole from which the centralportion of the forepart has been removed, the opening thus formed beingcovered by a comparatively thin patch I) (Fig. '7) cemented to adjacentportions of the insole. It has been found that in operating on a shoe ofthis kind lasting cement, such as latex, which may be deposited on theinsole-engaging face of the plate 20 upon contact of the insoletherewith, may cause the plate to exert such a drag on the insole inmoving inwardly over it as to displace the thin patch I) and perhapsalso the marginal portion of the insole. To guard against such anoccurrence, the machine herein shown is provided with means formoistening with water the insole-engaging face of the plate, experiencehaving proved that this lessens in a sufficiently effective manner anytendency for an insole to adhere to the plate. For the purpose in view apad 26, which may be of felt, is mounted over the rotary lasting device2 on an arm 28 which is fast on a rockshaft 30 supported by a bracket 32on the head of the machine, and also fast on this rockshaft is an arm 35having a roll 36 engaged by a cam 38 on the shaft 6. A spring 63connected to the arm 35 tends to swing this arm and the arm 28downwardly and thus holds the roll 35 at all times against the cam 38.

Formed in the cam is a recess 42 which arrives in position to receivethe roll 38 when the rotary lasting device 2 arrives in such a positionthat the insole-engaging plate 29 is directly under The pad is thereforemoved downwardly into contact with the plate to moisten the plate, thepad being maintained in a moistened condition by a wick 54 leadingtherefrom to a water receptacle supported on the head of the machine.Moisture is thus applied to the plate 20 near the end of the rotarymovement of the lasting device 2 to prepare the plate for use in thenext operation of the machine on a shoe. It will be understood that ifthe machine should remain idle long enough for the moisture on the plateto evaporate, the latter may be moistened again by causing the machinetooperate idly before its next operation on a shoe. It will also beunderstood that at all times except when the plate 20 is under the pad25 the pad is maintained by the cam 38 out of engagement with the rotarylasting device.

Having described the invention, what I claim as new and desire to secureby Letters Patent of the United States is:

1. In a shoemachine, the combination with means for operating on a shoeincluding an insole mounted on a last, of a'shoe-controlling memberarranged to engage the bottom face of the insole, means for effectingrelative movement of said member and the shoe to cause the member totraverse said face in frictional contact therewith, and means forapplying moisture to said member to lessen any tendency for the insoleto adhere thereto.

2. In a lasting machine, a member movable in frictional contact with thebottom face of an insole on a last in the lasting operation, and meansfor applying moisture to said member to lessen any tendency for theinsole to adhere thereto.

3. In a lasting machine, the combination with means for laying themargin of an upper inwardly over an insole on a last, of ashoe-controlling member arranged to engage the bottom face of the insoleand movable inwardly over said face in frictional contact therewith tomake way for said overlaying means, and automatic means for applyingmoisture to said member to lessen any tendency for the insole to adherethereto.

4. In a lasting machine, a rotary lasting device including a memberarranged to engage the bottom face of an insole on a last and movablealong said face in frictional contact therewith in response to rotationof the device, and automatic means for applying moisture to theinsole-engaging face of said member at a predetermined time in therotation of the device.

5. In a lasting machine, a rotary lasting device including a memberarranged to engage the bottom face of an insole on a last and movablealong said face in frictional contact therewith in response to rotationof the device, a pad movable into and out of position to apply moistureto the insole-engaging face of said member, automatic means for movingthe pad into that position at a predetermined time in the rotation ofthe device, and means for supplying moisture to the pad.

6. In a lasting machine, a rotary lasting device including a memberarranged to engage the bottom face of an insole on a last and movablealong said face in frictional contact therewith in response to rotationof the device, a pad arranged to apply moisture to the insole-engagingface of said member, a water-containing receptacle, and a wick leadingfrom said receptacle to the pad for conducting water to the pad.

7. In a lasting machine, a rotary lasting device including a membermovable to lay the margin of an upper inwardly over an insole on a lastand including also a shoe-controlling member arranged to engage thebottom face of the insole and movable inwardly over said face as thedevice is rotated, a pad for applying moisture to said shoe-controllingmember, an arm supporting said pad and movable to carry the pad intomoisture-applying position, and means for thus moving said arm at apredetermined time in the rotation of the device.

8. In a lasting machine, a rotary lasting device including a membermovable to lay the margin of an upper inwardly over an insole on a lastand including also a shoe-controlling member arranged to engage thebottom face of the insole and movable inwardly over said face as thedevice is'rotated, a pad for applying moisture to said shoe-controllingmember, a movable support for said pad, a cam for controlling saidsupport, and a spring for moving the support to carry the pad intomoisture-applying position when permitted by the cam.

CHARLES G. BROSTROM.

